It has some flaws, but one pretty fair way to rate players would be to require those who wish to be rated to play in one of the 18-board daily games per week (or at minimum 2 per month). Everybody would have the "same" partner, with the downside being that it would limit the effect of bidding skill in the rating. I would love this system, also, because I fear that when face-to-face bridge "fully" returns, we might lose the 18-board game due to low participation. I'd actually like that game to be 24 boards because it's the best way to practice playing matchpoints as far as maintaining concentration and discipline for a full session. Having said that I strongly appeal BBO to offer 24-board games daily in the week or 2 before the 3 annual Robot National tournaments. The "practices" don't cut it as far as the mental-concentration aspect. With 3 consecutive days of playing 24-board robot games, you can simulate the endurance aspect of playing in the tournament.